amazon.co.jp Amazon | 本, ファッション, 家電から食品まで | アマゾン

Mobile Usability

100/100

Good

Mobile Speed

52/100

Bad

Last tested: 2017-08-27

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amazon.co.jp Mobile Speed: 52/100
amazon.co.jp Mobile Speed Test Quick Overview

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 3 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
https://images-fe.ssl-images-amazon.com/images/I/5…nts/NavMobileMetaAsset
https://images-fe.ssl-images-amazon.com/images/I/5…ss?AUIClients/AmazonUI
https://images-fe.ssl-images-amazon.com/images/I/3…UIClients/GWMWebAssets
Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://amazon.co.jp/
https://amazon.co.jp/
https://www.amazon.co.jp/
Optimize images

Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 86.1KiB (41% reduction).
Compressing https://images-fe.ssl-images-amazon.com/images/G/0…1050._CB278975792_.jpg could save 86.1KiB (41% reduction).
Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://fls-fe.amazon.co.jp/1/batch/1/OP/A1VC38T7Y…J28HFPC%26aftb%3D1:137 (expiration not specified)
https://fls-fe.amazon.co.jp/1/batch/1/OP/A1VC38T7Y…6J28HFPC%26aftb%3D1:95 (expiration not specified)
https://fls-fe.amazon.co.jp/1/batch/1/OP/A1VC38T7Y…240710109%26ctb%3D1:96 (expiration not specified)
https://fls-fe.amazon.co.jp/1/batch/1/OP/A1VC38T7Y…J28HFPC%26aftb%3D1:131 (expiration not specified)
https://fls-fe.amazon.co.jp/1/batch/1/OP/A1VC38T7Y…J28HFPC%26aftb%3D1:107 (expiration not specified)
https://fls-fe.amazon.co.jp/1/batch/1/OP/A1VC38T7Y…J28HFPC%26aftb%3D1:115 (expiration not specified)
https://fls-fe.amazon.co.jp/1/batch/1/OP/A1VC38T7Y…J28HFPC%26aftb%3D1:123 (expiration not specified)
https://fls-fe.amazon.co.jp/1/batch/1/OP/A1VC38T7Y…J28HFPC%26aftb%3D1:454 (expiration not specified)
https://fls-fe.amazon.co.jp/1/batch/1/OP/A1VC38T7Y…28HFPC%26aftb%3D1:1353 (expiration not specified)
https://fls-fe.amazon.co.jp/1/batch/1/OP/A1VC38T7Y…J28HFPC%26aftb%3D1:100 (expiration not specified)
https://fls-fe.amazon.co.jp/1/batch/1/OP/A1VC38T7Y…rd%26pti%3Dmobile:1000 (expiration not specified)
Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
Only about 62% of the final above-the-fold content could be rendered with the full HTML response.

amazon.co.jp Mobile Resources


Total Resources82
Number of Hosts23
Static Resources38
JavaScript Resources10
CSS Resources6

amazon.co.jp Mobile Resource Breakdown